The multifunctional scraper is a new type of scraper that can be used as a general non-rotating fixed scraper or as a rotatable scraper. In addition to conventional cleaning operations, if an obstruction is encountered midway, the downhole string should be stopped, the wellhead should be flushed, and a certain upward force should be applied to shear the shear pin and enter the rotating linkage mode. Then, according to the actual situation, the unlocking operation can be carried out, such as providing a certain torque, pressing down, circulating, and impacting until the normal operation is restored, and then the downhole string can be continued.
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The JY type scraper can be used as a general fixed scraper, or as a rotating type casing scraper. When used as a fixed scraper, simply increase the adjustment pad at the upper joint to prevent rotation. Reducing the adjustment pad makes it a rotatable scraper. Its main purpose is to remove cement, sand, residual bullets, scratches, paraffin, burrs and other attachments from the inner wall of the casing, protecting the cleanliness of the inner wall of the casing.
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The main purpose of a casing scraper is to remove cement, sand, shot residue, scratches, paraffin, burrs, and other deposits from the inner wall of the casing in the well, keeping the inner wall of the casing clean for the entry of various downhole tools.
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A hydraulic internal cutter is an internal cutting tool that uses hydraulic power to drive the cutter for internal pipe cutting. The cutter has a reasonable structure, is easy to maintain, and cuts quickly. When cutting multi-layer non-concentric casings, it can withstand strong vibrations. The sturdy cutter arm can extend to 5 times the diameter of the main body, thus achieving maximum stability under various unfavorable cutting conditions (including hard spots, eccentricity, discontinuous cutting, etc.).
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Mechanical internal cutting knife
The mechanical internal cutter is a tool specifically designed for cutting downhole fixed (or stuck) tubing from inside the pipe. It can cut at any location inside the pipe, except for the joint and coupling sections.
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Mechanical external cutting knife
The mechanical internal cutter is a tool specifically designed for cutting downhole fixed (or stuck) tubing from inside the pipe. It can cut at any location inside the pipe, except for the joint and coupling sections.
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